You need to get some more of the PHP basics down. You've simply forgotten to escape the embedded double-quote mark with a backslash, which would apply to any double-quoted string. Actually, because regular expressions do their own backslash-interpreting, you need two backslashes, or else embed it in a single-quote ('\"').
And also, in the simple case of replacing one literal string with another, str_replace() is easier to use and faster to execute. In fact you should read the whole manual section on string functions and regular expressions before proceeding--not that the manual is perfect, however: the page for str_replace() has a cross-reference to ereg_replace(), stating that for simpler replacements the former was better, but amazingly there's not a cross-reference in the reverse direction warning new users of ereg_replace() that they might want to consider str_replace() instead!
As far as your original question, I wasn't sure whether you wanted just the tags to go away, or all the stuff in between them, and if the latter, what to do about embedded tags.
